Prosthesis (i.e. – artificial body members) – parts thereof – or ai – Arterial prosthesis
Reexamination Certificate
2008-03-04
2008-03-04
Saucier, Sandra E. (Department: 1651)
Prosthesis (i.e., artificial body members), parts thereof, or ai
Arterial prosthesis
C424S423000
Reexamination Certificate
active
07338517
ABSTRACT:
A tubular tissue scaffold is described which comprises a tube having a wall, wherein the wall includes biopolymer fibrils that are aligned in a helical pattern around the longitudinal axis of the tube where the pitch of the helical pattern changes with the radial position in the tube wall. The scaffold is capable of directing the morphological pattern of attached and growing cells to form a helical pattern around the tube walls. Additionally, an apparatus for producing such a tubular tissue scaffold is disclosed, the apparatus comprising a biopolymer gel dispersion feed pump that is operably connected to a tube-forming device having an exit port, where the tube-forming device is capable of producing a tube from the gel dispersion while providing an angular shear force across the wall of the tube, and a liquid bath located to receive the tubular tissue scaffold from the tube-forming device. A method for producing the tubular tissue scaffolds is also disclosed. Also, artificial tissue comprising living cells attached to a tubular tissue scaffold as described herein is disclosed. Methods for using the artificial tissue are also disclosed.
REFERENCES:
patent: 1548504 (1925-08-01), Becker
patent: 3114372 (1963-12-01), Griset, Jr. et al.
patent: 3114593 (1963-12-01), Griset et al.
patent: 3123482 (1964-03-01), Lieberman
patent: 4060081 (1977-11-01), Yannas et al.
patent: 4138503 (1979-02-01), Ziolko
patent: 4544516 (1985-10-01), Hughes et al.
patent: 4787900 (1988-11-01), Yannas
patent: 4902289 (1990-02-01), Yannas
patent: 5171273 (1992-12-01), Silver et al.
patent: 5378469 (1995-01-01), Kemp et al.
patent: 5591225 (1997-01-01), Okuda
patent: 5711909 (1998-01-01), Gore et al.
patent: 5718012 (1998-02-01), Cavallaro
patent: 5718723 (1998-02-01), Matsuda et al.
patent: 5863984 (1999-01-01), Doillon et al.
patent: 5972441 (1999-10-01), Campbell et al.
patent: 6057137 (2000-05-01), Tranquillo et al.
patent: 6090117 (2000-07-01), Shimizu
patent: 6090996 (2000-07-01), Li
patent: 6103255 (2000-08-01), Levene et al.
patent: 6109834 (2000-08-01), Chitwood
patent: 6124256 (2000-09-01), Hayry et al.
patent: 6136024 (2000-10-01), Shimizu
patent: 6245099 (2001-06-01), Edwin et al.
patent: 6245103 (2001-06-01), Stinson
patent: 6316522 (2001-11-01), Loomis et al.
patent: 6323022 (2001-11-01), Chang et al.
patent: 6331422 (2001-12-01), Hubbell et al.
patent: 6337198 (2002-01-01), Levene et al.
patent: 6365149 (2002-04-01), Vyakarnam et al.
patent: 6371992 (2002-04-01), Tanagho et al.
patent: 6391333 (2002-05-01), Li et al.
patent: 6436135 (2002-08-01), Goldfarb
patent: 6443884 (2002-09-01), Miyawaki
patent: 6461629 (2002-10-01), Tranquillo et al.
patent: 6471993 (2002-10-01), Shastri et al.
patent: 6500464 (2002-12-01), Ceres et al.
patent: 6517571 (2003-02-01), Brauker et al.
patent: 6534084 (2003-03-01), Vyakarnam et al.
patent: 6540780 (2003-04-01), Ziilla et al.
patent: 6544762 (2003-04-01), Tranquillo et al.
patent: 6547814 (2003-04-01), Edwin et al.
patent: 6554857 (2003-04-01), Zilla et al.
patent: 6592623 (2003-07-01), Bowlin et al.
patent: 6692761 (2004-02-01), Mahmood et al.
patent: 6737073 (2004-05-01), Mahmood et al.
patent: 2003/0009151 (2003-01-01), Wang
patent: 2004/0009600 (2004-01-01), Bowlin et al.
Nehrer S et al. 1997. Canine chondrocytes seeded in type I and type II collagen implants investigated in vitro. J Biomed Mater Res (Appl Biomater) 38: 95-104.
Patent Cooperation Treaty (PCT) International Search Report (Form PCT/ISA/210), mailed May 26, 2005, completion date Apr. 21, 2005.
PCT Invitation to Pay Additional Fees, mailed Feb. 11, 2005 International Application No. PCT/US04/17712, International Filing Date Jun. 4, 2004.
Patent Cooperation Treaty (PCT) “Corrected” International Search Report (Form PCT/ISA/210), mailed Jan. 13, 2006, completion date Apr. 21, 2005.
Goldsmith Edie C.
Goodwin Richard L.
Gore C. Michael
Terracio Louis
Yost Michael J.
Barnhart Lora E.
Nelson Mullins Riley & Scarborough LLP
Saucier Sandra E.
University of South Carolina
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